Take a look at these.
You could have one end to inlet on fuel solenoid and a male on top of your race gas tank.
Before you make a fast pass you un snap and attach it back to the small tank. Trigger nitrous with the bottle off and watch the gas flow back into the small tank.....
Hum but then when you re connect did you introduce air into the system???
And they are pricey fittings so probablynot great for experiments.........
:)
